E6-9377. Pinnacle West Capital Corporation; Arizona Public Service Company; Pinnacle West Energy Corporation; APS Energy Services Company, Inc.; Notice of Filing

June 8, 2006.

Take notice that on May 17, 2006, pursuant to the Commission's Order issued on April 17, 2006, in the above-captioned proceeding, Pinnacle West Companies filed revised market-based rate tariffs to limit sales at market-based rates to areas outside of the APS control area and a separate tariff to provide for the default cost-based rates for the APS control area, to be effective February 27, 2005.

Any person desiring to intervene or to protest this filing must file in accordance with Rules 211 and 214 of the Commission's Rules of Practice and Procedure (18 CFR 385.211, 385.214). Protests will be considered by the Commission in determining the appropriate action to be taken, but will not serve to make protestants parties to the proceeding. Any person wishing to become a party must file a notice of intervention or motion to intervene, as appropriate. Such notices, motions, or protests must be filed on or before the comment date. Anyone filing a motion to intervene or protest must serve a copy of that document on the Applicant and all the parties in this proceeding.

The Commission encourages electronic submission of protests and interventions in lieu of paper using the “eFiling” link at http://www.ferc.gov. Persons unable to file electronically should submit an original and 14 copies of the protest or intervention to the Federal Energy Regulatory Commission, 888 First Street, NE., Washington, DC 20426.

This filing is accessible on-line at http://www.ferc.gov,, using the “eLibrary” link and is available for review in the Commission's Public Reference Room in Washington, DC. There is an “eSubscription” link on the Web site that enables subscribers to receive e-mail notification when a document is added to a subscribed docket(s). For assistance with any FERC Online service, please e-mail [e-mail], or call [phone] (toll free). For TTY, call [phone].

Comment Date: 5 p.m. Eastern Time on June 29, 2006.

Magalie R. Salas,

Secretary.